I have always wondered this, its exceptionally hit and miss and there isnt any real standards.\u00a0I recently found the reason on the internet<\/p>\n
\nWell, there were other factors in play there. htmlspecialchars was a very early function. Back when PHP had less than 100 functions and the function hashing mechanism was strlen(). In order to get a nice hash distribution of function names across the various function name lengths names were picked specifically to make them fit into a specific length bucket. This was circa late 1994 when PHP was a tool just for my own personal use and I wasn't too worried about not being able to remember the few function names.\r\n\r\n-Rasmus - citation<\/a><\/pre>\n<\/blockquote>\nSo it turns out they were very specifically named to make sure they would fit nicely into the hashing function… Obviously today this isn’t needed, but its an exceptionally old artefact of PHP’s\u00a0past that never got changed.<\/p>\n","protected":false},"excerpt":{"rendered":"
I have always wondered this, its exceptionally hit and miss and there isnt any real standards.\u00a0I recently found the reason on the internet Well, there were other factors in play there. htmlspecialchars was a very early function. Back when PHP had less than 100 functions and the function hashing mechanism was strlen(). In order to […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"quote","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[5,98],"tags":[],"class_list":["post-189","post","type-post","status-publish","format-quote","hentry","category-informational","category-software","post_format-post-format-quote"],"wppr_data":{"cwp_meta_box_check":"No"},"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2toWX-33","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":1221,"url":"https:\/\/chewett.co.uk\/blog\/1221\/how-combining-php-flags-works-for-function-calls\/","url_meta":{"origin":189,"position":0},"title":"How combining PHP flags works for function calls","author":"Chewett","date":"June 2, 2018","format":false,"excerpt":"Here I talk a bit about how combining PHP flags work and why we use a vertical bar to combine them. What can flags do with functions? Some PHP functions have a parameter called $options that allow changing how it operates. One or many flags can be passed into this\u2026","rel":"","context":"In "Informational"","block_context":{"text":"Informational","link":"https:\/\/chewett.co.uk\/blog\/category\/informational\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/06\/combining_flags_php.jpg?fit=800%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/06\/combining_flags_php.jpg?fit=800%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/06\/combining_flags_php.jpg?fit=800%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/06\/combining_flags_php.jpg?fit=800%2C800&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":602,"url":"https:\/\/chewett.co.uk\/blog\/602\/modifying-wordpress-theme-child-theme\/","url_meta":{"origin":189,"position":1},"title":"Modifying a WordPress theme with a child theme","author":"Chewett","date":"August 26, 2017","format":false,"excerpt":"The recommended way to modify a WordPress theme is to use a child theme. This allows redefining all features of the parent theme without manually changing the theme. This post describes why you might want to do this and how to do it. Why would I want a child theme\u2026","rel":"","context":"In "Informational"","block_context":{"text":"Informational","link":"https:\/\/chewett.co.uk\/blog\/category\/informational\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2017\/08\/wordpress_child_themes.jpg?fit=800%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2017\/08\/wordpress_child_themes.jpg?fit=800%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2017\/08\/wordpress_child_themes.jpg?fit=800%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2017\/08\/wordpress_child_themes.jpg?fit=800%2C800&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":1994,"url":"https:\/\/chewett.co.uk\/blog\/1994\/d3-js-version-5-prediction-line-chart\/","url_meta":{"origin":189,"position":2},"title":"D3.js version 5 Prediction Line Chart","author":"Chewett","date":"February 13, 2019","format":false,"excerpt":"Today I am writing about the Prediction Line Chart I have created in D3.js version 5. Here I provide the full code how to create it yourself and how it works. What is a Prediction Line Chart? A Prediction Line Chart is an extension of a basic line chart where\u2026","rel":"","context":"In "Software"","block_context":{"text":"Software","link":"https:\/\/chewett.co.uk\/blog\/category\/software\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2019\/02\/d3_v5_prediction_line.jpg?fit=800%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2019\/02\/d3_v5_prediction_line.jpg?fit=800%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2019\/02\/d3_v5_prediction_line.jpg?fit=800%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2019\/02\/d3_v5_prediction_line.jpg?fit=800%2C800&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":1700,"url":"https:\/\/chewett.co.uk\/blog\/1700\/colour-scales-in-d3-version-5\/","url_meta":{"origin":189,"position":3},"title":"Colour scales in D3 Version 5","author":"Chewett","date":"November 3, 2018","format":false,"excerpt":"Over the past versions in D3.js there have been a number of changes to how you can get a colour scale to use with your charting. This blog post explores what is available and how to use it. This blog post applies to D3.js version 5. Colour scales in D3.js\u2026","rel":"","context":"In "Software"","block_context":{"text":"Software","link":"https:\/\/chewett.co.uk\/blog\/category\/software\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/11\/d3_colour_scales-1.jpg?fit=800%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/11\/d3_colour_scales-1.jpg?fit=800%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/11\/d3_colour_scales-1.jpg?fit=800%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/11\/d3_colour_scales-1.jpg?fit=800%2C800&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":1144,"url":"https:\/\/chewett.co.uk\/blog\/1144\/creating-a-loading-progress-bar-animation-with-html5-canvas\/","url_meta":{"origin":189,"position":4},"title":"Creating a loading progress bar animation with HTML5 Canvas","author":"Chewett","date":"April 28, 2018","format":false,"excerpt":"In this HTML5 canvas example I create a simple loading progress bar demonstrating how you can use animation in a canvas. Creating an animation function Like all animation, the HTML5 canvas can create moving images by rapidly changing the image you are viewing. This is done by having a function\u2026","rel":"","context":"In "Software"","block_context":{"text":"Software","link":"https:\/\/chewett.co.uk\/blog\/category\/software\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/04\/loading_progress_bar_animation_html5.jpg?fit=800%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/04\/loading_progress_bar_animation_html5.jpg?fit=800%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/04\/loading_progress_bar_animation_html5.jpg?fit=800%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/04\/loading_progress_bar_animation_html5.jpg?fit=800%2C800&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":1030,"url":"https:\/\/chewett.co.uk\/blog\/1030\/overlaying-geo-data-leaflet-version-1-3-d3-js-version-4\/","url_meta":{"origin":189,"position":5},"title":"Overlaying geo data with Leaflet Version 1.3 and D3.js Version 4","author":"Chewett","date":"February 24, 2018","format":false,"excerpt":"In this post I describe how you can overlay Geo Data onto a leaflet map with D3.js. Combining Leaflet and D3 and objectives There are a number of tutorials online on how to overlay Geodata with D3.js. However, I couldn't find any of these that worked for the most recent\u2026","rel":"","context":"In "Software"","block_context":{"text":"Software","link":"https:\/\/chewett.co.uk\/blog\/category\/software\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/02\/d3_leaftlet_intro.jpg?fit=800%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/02\/d3_leaftlet_intro.jpg?fit=800%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/02\/d3_leaftlet_intro.jpg?fit=800%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/02\/d3_leaftlet_intro.jpg?fit=800%2C800&ssl=1&resize=700%2C400 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/chewett.co.uk\/blog\/wp-json\/wp\/v2\/posts\/189","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chewett.co.uk\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chewett.co.uk\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chewett.co.uk\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chewett.co.uk\/blog\/wp-json\/wp\/v2\/comments?post=189"}],"version-history":[{"count":5,"href":"https:\/\/chewett.co.uk\/blog\/wp-json\/wp\/v2\/posts\/189\/revisions"}],"predecessor-version":[{"id":245,"href":"https:\/\/chewett.co.uk\/blog\/wp-json\/wp\/v2\/posts\/189\/revisions\/245"}],"wp:attachment":[{"href":"https:\/\/chewett.co.uk\/blog\/wp-json\/wp\/v2\/media?parent=189"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chewett.co.uk\/blog\/wp-json\/wp\/v2\/categories?post=189"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chewett.co.uk\/blog\/wp-json\/wp\/v2\/tags?post=189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}